diff --git a/ilsp/bicep_lsp/proxy.py b/ilsp/bicep_lsp/proxy.py
index f16ddfd..258b339 100644
--- a/ilsp/bicep_lsp/proxy.py
+++ b/ilsp/bicep_lsp/proxy.py
@@ -118,7 +118,7 @@ class _ProxySession:
 
         # Find the last module declaration in the lookback window
         mod_matches = list(
-            re.finditer(r"module\s+\w+\s+'br/modules:([^:]+):([^']+)'", context_text)
+            re.finditer(r"module\s+\w+\s+'br/modules:([^:]+):([^']*)'", context_text)
         )
         if mod_matches:
             last_mod = mod_matches[-1]
diff --git a/tests/test_proxy.py b/tests/test_proxy.py
index 5b16fdb..b68c056 100644
--- a/tests/test_proxy.py
+++ b/tests/test_proxy.py
@@ -253,6 +253,22 @@ def test_detect_param_context():
     assert ctx["version"] == "1.1.x"
 
 
+def test_detect_param_context_empty_version():
+    """Params context should work even when module ref has no version yet."""
+    lines = [
+        "module keyVault 'br/modules:modules/keyvault:' = {",
+        "  params: {",
+        "    ",  # ← cursor here
+        "  }",
+        "}",
+    ]
+    session = _make_session_with_doc(URI, lines)
+    ctx = session._detect_context(URI, {"line": 2, "character": 4})
+    assert ctx["type"] == "param"
+    assert ctx["module"] == "modules/keyvault"
+    assert ctx["version"] == ""
+
+
 def test_detect_param_value_context_no_quote():
     """Cursor after 'principalType: ' (no opening quote) → param_value context."""
     lines = [